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Nissan Sentra B18 (2020-2025) Service Manual / Body Exterior, Doors, Roof & Vehicle Security / Door & Lock :: Symptom Diagnosis / Door Does Not Lock/unlock and Engine Does Not Start (all I-Key/req Sw/push Sw)

Nissan Sentra B18 (2020-2025) Service Manual: Door Does Not Lock/unlock and Engine Does Not Start (all I-Key/req Sw/push Sw)

Description

Description

All doors do not lock/unlock using door request switch or trunk does not open using trunk opener request switch, Intelligent Key, and engine does not start when push-button ignition switch is pressed while carrying Intelligent Key.

SYMPTOM TABLE (BOTH INTELLIGENT KEYS HAVE THE SAME SYMPTOMS)

Door lock operation (remote keyless entry)

Door lock operation (request switch) or trunk open operation (opener switch of trunk lid)

Engine started with push-button ignition switch operation (registered Intelligent Key is within the detection area of inside key antenna)

Engine started with push-button ignition switch operation (registered Intelligent Key placed next to push-button ignition switch)

NG

NG

No crank, No start

OK

CONDITIONS OF Nissan Sentra Vehicle (OPERATING CONDITIONS)

“ENGINE START BY I-KEY” setting in “Work support” mode of “HANDS FREE MODULE” is ON.

DIAGNOSIS PROCEDURE

Refer to Diagnosis Procedure.

Diagnosis Procedure

Diagnosis Procedure

  1. CHECK INTELLIGENT KEY SYSTEM SYMPTOM TABLE

    1. Check Intelligent Key system symptom table.

      Refer to Diagnosis Procedure.

    >>

    GO TO 2.

  2. CHECK INTELLIGENT KEY BATTERY

    1. Check Intelligent Key battery.

      Refer to Component Inspection.

    Is the inspection result normal?

    YES >>

    GO TO 3.

    NO >>

    Repair or replace the malfunctioning parts.

  3. REPLACE INTELLIGENT KEY UNIT

      1. Replace Intelligent Key unit. Refer to Removal and installation.

      2. Check operation after replacement.

    Is the inspection result normal?

    YES >>

    Inspection End.

    NO >>

    Check intermittent incident. Refer to Intermittent Incident.

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